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AI Tools for Property Tax Consultants
AI tools that help property tax consultants research assessments, pull comparable sales for appeals, prepare evidence packages, and track appeal deadlines.
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Works in Chat, Cowork and Code
AddressSale priceSqft
412 N Bedford Dr$2,180,0003,100
809 N Hillcrest Rd$2,240,0003,280
1204 Laurel Way$2,090,0002,950
507 N Linden Dr$2,310,0003,400
Median comp: $2,205,000 · Subject assessed at $2,400,000 — 8.8% above median
Comparable sales research for appeals
Pull arm's-length sales transactions, price-per-sqft data, and condition-adjusted comps to challenge inflated assessments at the appraisal district or board of review. Build a comp grid faster than manual research.
Pull residential comp sales for a 2,800 sqft ranch home in Harris County TX (zip 77024) sold in the 12 months before January 1, 2024 to challenge a $785,000 assessment.
Found 22 arm's-length sales within 1 mile of the subject property. Adjusted median: $681,000 ($/sqft: $243). 6 closest comps (same condition, similar lot): range $640K–$718K, median $672K. Assessment is 16.8% above median comp. Strong basis for appeal to Harris County ARB.
ToolRouter search_listings
AddressSale priceSqft
414 Bayou Bend Rd$672,0002,810
318 Riverview Dr$694,0002,890
705 Memorial Dr$648,0002,740
912 Augusta Dr$711,0002,950
22 sales found · Adjusted median $681,000 · Assessment $785,000 is 16.8% above median
Income approach valuation for commercial appeals
Calculate income-based market value for commercial properties using market cap rates and NOI data. Present an income approach alternative to the assessor's cost-based valuation in your appeal evidence.
The assessor valued our 48,000 sqft suburban office at $8.4M. Actual NOI is $420K. Market cap rates for similar suburban offices in our county are 7.8–8.2%. Build the income approach valuation.
Income approach results: At 7.8% cap: $5.38M. At 8.0% cap: $5.25M. At 8.2% cap: $5.12M. Indicated value range: $5.12M–$5.38M. Assessment of $8.4M is 56–64% above income-indicated value. High vacancy (18%) in submarket further supports below-average NOI. Recommend leading appeal with income approach.
ToolRouter calculate_dcf
Indicated Value ($M)
Appeal filing research and deadline tracking
Research protest deadlines, evidence submission requirements, and hearing procedures for every county and state where you have clients. Never miss a filing window due to jurisdiction-specific calendar differences.
What are the property tax appeal deadlines and procedures for commercial properties in Dallas County, Texas for the 2024 tax year? Include the protest deadline, required evidence, and hearing process.
Dallas County ARB 2024: Protest deadline May 15, 2024 (or 30 days from notice of appraised value, whichever is later). Evidence exchange required 14 days before scheduled hearing. Informal hearing first — if unresolved, formal ARB hearing scheduled. Binding arbitration available if ARB value over $500K. SOAH appeal available after ARB for values over $1M.
ToolRouter research
Protest deadline
May 15, 2024 or 30 days from notice of appraised value — whichever is later
Evidence exchange
Required 14 days before scheduled hearing
Informal hearing
First step — if unresolved, formal ARB hearing scheduled
Binding arbitration
Available if ARB value over $500,000
SOAH appeal
Available after ARB for values over $1,000,000
Assessment appeal evidence package
Compile and format complete appeal evidence packages including comp grids, valuation analysis, market condition statements, and property-specific adjustment documentation.
Create a formal assessment appeal brief for a Phoenix commercial office property assessed at $4.2M. I have 8 comp sales ranging from $2.8M–$3.6M and an income value of $3.1M.
Generated 14-page appeal package: executive summary with over-assessment amount ($1.1M–$1.4M), sales comparison grid with 8 comps and adjustments, income approach analysis with market cap rate support, market condition statement noting Phoenix office vacancy at 19.2%, and formal protest conclusions. Formatted for Maricopa County Board of Equalization.
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Executive summary
Over-assessment: $1.1M–$1.4M — sales and income approaches both support lower value
Sales comparison grid
8 comparable sales with individual adjustments — median adjusted $3.1M
Income approach
NOI analysis at 7.8%–8.2% market cap rates — $3.05M–$3.25M indicated
Market conditions
Phoenix office vacancy 19.2% — documented from CBRE Q4 2025 market report
ToolRouter create_chart
Value ($M)
Portfolio-wide assessment audit
Screen a client's entire property portfolio against market values to identify the highest-value appeal targets. Prioritize based on over-assessment percentage and potential tax savings.
I have a client with 18 single-family rentals in Hillsborough County FL. Pull market values for each address so I can compare against assessments and prioritize the top appeal candidates.
Pulled market estimates for all 18 properties. 7 appear significantly over-assessed (11–28% above market). Top 3 by potential savings: 4820 Maple St ($64K over — est. $3,800/yr tax savings), 2200 Oak Ave ($49K over — est. $2,900/yr savings), 8810 Pine Rd ($41K over — est. $2,400/yr savings). Full portfolio audit exported to Excel.
ToolRouter property_valuation
AddressAssessed valueMarket est.
4820 Maple St$318,000$254,000
2200 Oak Ave$291,000$242,000
8810 Pine Rd$267,000$226,000
Portfolio avg (18)$248,500$229,400
7 of 18 over-assessed · Top 3 est. $9,100/yr combined tax overpayment
Ready-to-use prompts
Pull comps for appeal
Find arm's-length residential sales for a 2,200 sqft 3-bed/2-bath home in zip code 77024 (Houston TX) sold between January 1 and December 31, 2023. Include price per sqft, condition notes, and distance from subject property.
Income approach valuation
Calculate income approach value for a 32,000 sqft strip retail center: NOI $680,000, market cap rates for similar properties 6.8%–7.4%. Show value at multiple cap rates and comparison to cost approach at $11.2M.
Appeal deadline research
What are the property tax protest deadlines and ARB procedures for commercial properties in Travis County (Austin) TX and Bexar County (San Antonio) TX for the 2024 tax year?
Draft appeal brief
Draft a formal property tax appeal brief for a Tarrant County TX residential property assessed at $520,000 with 6 comps ranging from $410K to $465K. Include comp grid, adjustment rationale, and requested value.
Assessment vs. market chart
Create a bar chart comparing assessed values vs. my comp-based market values for 10 residential properties in Harris County TX. Show over-assessment amount for each.
State exemption research
Research homestead exemption amounts, age 65 freeze programs, and disability exemptions available in Texas. What is the total exemption a qualifying senior homeowner can claim in Travis County?
Cap rate research
Research current market cap rates for Class B suburban office space in the major Texas metros (Dallas, Houston, Austin, San Antonio). Use 2023–2024 transaction data.
Portfolio audit workbook
Create an Excel workbook for auditing a 25-property residential portfolio for over-assessment. Include columns for address, assessed value, estimated market value, over-assessment amount, estimated annual tax overpayment, and appeal priority score.
Tools to power your best work
Deep ResearchAI research reports with citations
Financial CalculatorDCF, bonds, options & portfolios
Excel ToolsCreate, read & modify Excel
Word DocumentsCreate, read & modify Word docs
Real Estate DataListings, valuations & market data
165+ tools.
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Everything property tax consultants need from AI, connected to the assistant you already use. No extra apps, no switching tabs.
Commercial property appeal package
Build a complete, evidence-backed appeal package for a commercial assessment challenge from valuation research through document preparation.
Portfolio assessment screening
Identify the highest-priority appeal targets across a client's full property portfolio.
Multi-jurisdictional deadline calendar
Research and compile appeal deadlines for all jurisdictions where you have active client portfolios.
Frequently Asked Questions
How accurate is the Real Estate Data tool for building a comp grid?
Real Estate Data provides transaction records from multiple aggregated sources including county recorder data. Accuracy is highest for residential properties in major MSAs. For formal appeal evidence, cross-reference with the appraisal district's own sales database, as assessors will scrutinize any comp discrepancies.
Can the Financial Calculator handle income approach for complex commercial properties?
The Financial Calculator handles core income approach math: NOI-to-value using cap rates, DCF with growth assumptions, and sensitivity tables at multiple cap rate scenarios. For properties with complex lease structures, above-market or below-market rents, or vacancy adjustments, supplement the tool's output with your own lease analysis.
Is the Deep Research tool reliable for state-specific appeal procedural research?
Deep Research is highly effective for understanding state protest statutes, ARB procedures, and deadline rules. For multi-year appeal cycles or recent legislative changes, always verify against the official appraisal district or state comptroller website, as procedural rules can change annually.
Can these tools help with industrial property appeals?
Yes — Real Estate Data covers industrial and warehouse transactions, and Financial Calculator handles the income approach for industrial net-leased properties. Deep Research can compile market cap rate data specific to industrial submarkets. The workflow is the same as commercial office — comps, income approach, and formal appeal brief.
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Works in Chat, Cowork and Code